Mold-jacket.



J. C. L G. L. GEORGE.

MOLD JACKET. APPLICATION FILED sEPT.29. 191s.

1,2l 19570, Patented Jan. 9, 1917.

Inventory Attorneys @bili srarns rarer JAMES C, GEORGE AND GABRIEL L.GEORGE, F BRISTOL, VIRGXNIA.

MOLD-JACKET.

Application filed September' 29, 1916.

To all 107mm t may concern.'

Be it known that we, JAMES C. GEORGE and meinst L. GEORGE, citizens ofvthe United States, residing at Bristol, in the county oit l/Vashington,State of Virginia, have invented a new and useful Mold- Jacket, oi whichthe following is a` specification. v

The device forming the subject matter of this application is a jacketadapted tol hold a mold of the kind used in metal casting operations.

The invention aims to provide a latch which is so constructed that itwill serve as a means for opening and closing the jacket, and serve as ameans for holding the acket in a closed or open position, theconstruction being such that the acket may be opened up to enable it toslip over the mold without disturbing or crushing the mold in any way.

it is within the province of the disclosure to improve generally and toenhance the utility of devices of that type to which the presentinvention appertains.

With the above and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed can be made within thescope et what is claimed, without departing from the spirit of theinvention.

In the accompanying drawings Figure 1 shows in top plan, a mold jacketconstructed in accordance with the present invention, parts being brokenaway; Fig. 2 is an end elevation of the structure shown in Fig. 1; andFig. 3 is a fragmental side elevation illustrating the latch mechanismand cooperating parts.

The mold acket forming the subject matter of this application preferablyis fashioned from metal throughout, saving as otherwise specifiedhereinafter, and comprises ends 1 and 2 and sides 3 and 4. The end 2 hasan outwardly projecting rectangularly disposed flange 5 united bysecuring elements 6 with the side 3. Located in the angle deined by theiiange 5 and the end 2 is a handle 7 which acts as a brace for theflange 5. The handle 'Z preferably is not made of metal, but is made ofsome sub- Speccation of Letters Patent.

Patented Jan. 9, i917.

Serial No. 122,916.

stance which will not conduct heat readily, the purpose of the handlebeing to permit the mold jacket to be manipulated without inconvenienceto the operator, due to heat. The lend 1 has an outwardly projectinglia-nge 8 like the flange 5, the iiange 8 being united by means ofsecuring elements 9 with one end of the side wall 4. rllhe flanges 5 and8 are located at diagonally opposite corners of the jacket. A handle 12,like the handle 7, coperates with the ange 8 and the end 1.

One extremity oi the end wall 1 and the adjacent extremity of the endwall 3 are provided with hinge knuckles 10 united by pivot elements 11.It will now be seen that the jacket herein disclosed comprises tworectangular parts, one of which is formed of the members 1 and 4, theother of which is formed oi' the members 2 and 3, these rectangularparts being united by the hinge constructions 10-11. ln one end of theside wall 4 there is formed a notch or seat 14 receiving a lugprojecting from the end 2. Because the lug 15 is received in the notch14, a vertical movement between the free ends of the end wall 2 and theside wall 4 cannot take place. rlhe lug 15, however, is long enough sothat the side 4 can be swung outwardly in a horizontal direction awayfrom the end 2, without causing the lug 15 to lea-ve the notch 14.rihus, a relative vertical movement between the parts 2 and 4 cannottake place, even though the jacket is slightly opened at one corner. i

The side 4 is equipped with a projecting keeper 16 including anupstanding arm 17. The inner edge oi' the arm 17 inclines downwardly andinwardly as shown at 18. The rear edge oi the arm 17 is downwardlyinclined as shown at 27.

Mounted upon or formed integrally with the end 2 `is an arcuate track 19equipped at its upper end with a stop 20. rlhe end 2 may carry a spacingboss ,21 through which is passed a pivot element 22 supporting a washer23. A latch lever 24 is shown, and the same has an enlarged bearingportion mounted to swing on the pivot element 22 between the washer 23and the spacing boss 21. The latch lever 24 includes a depending bill26, the inner edge of which is shown at 30. Projecting from the bearingportion 25 of the latch lever and disposed approximately at right anglesto the lower end of the bill 26 is a inger 28. The lever 24 preferablyis offset where its handle portion joins the bearing part 25, asindicated at 29.

Let it be supposed that the right hand end of the latch lever 24 islowered, as shown in Fig. 2. Then the bill 26 of the lever 24 eX- tendsacross the keeper 16, and the side 4 is prevented from swingingoutwardly with respect to the end 2. Owing to the fact that the inneredge of the arm 17 is inclined as shown at 18, the lower portion of theedge 18 engages the bill 26 of the latch lever 24 when the right handend of the latch lever is lowered, and consequently the side 4 cannotmove endwise when the latch lever is lowered. When the left hand end ofthe latch lever 24 is pushed downwardly and when the right hand end ofthe latch lever is raised, the extremity of the finger 28 bears againsttheinclined surface 27 of the arm 17 of the keeper 16, and thus the side4 is swung outwardly with respect to the end 2, thus effecting anopening of the jacket. The constituent parts of the jacket, during thisoperation, swing with the pivot elements 11 as centers. Because the edge18 of the arm 17 is inclined, as clearly shown in Fig. 8, the wall 4 ispermitted to swing outwardly, with the pivot elements 11 as a center,when the latch lever 24 is raised at its right hand end, sufficient playthus being afforded between the upper extremity of the arm 17 and thebill 26 of the latch lever. TWhen the right hand end of the latch lever24 is raised sufliciently, the bill 26 engages the stop 20. It is thusimpossible to disengage the bill 26 entirely from the keeper 16, and tod isengage the iinger 28 completely from the rear surface 27 of the arm17. The jacket can be opened slightly, therefore, but a means,represented by the stop 20, is provided whereby a complete disengagementof the side 4 from the end 2 is prevented. rlhe spacing boss 21 and thetrack 19 coperate to hold the latch lever 24 apart from the end 2,thereby reducing friction.

When a jacket constructed in accordance with the present invention isused, a larger casting can be made than would be possible otherwise,because the pattern can come close to the outer edge of the flask, thisoperation being possible because the jacket herein disclosed may beopened thereby avoiding any danger of crushing or breaking down the moldwhen the jacket is put into place or removed. Owing to the specific wayin which the movable parts of the jacket may be manipulated by means ofthe latch lever 24, a considerable amount of time can be saved.

The present invention has been embodied in the form of a vertical walledjacket, but it is obvious that it may be embodied in a jacket the wallsof which are inclined. This Vis a detail lying well within the scope ofa skilled mechanic and unworthy of specific delineation.

Having thus described the invention, what is claimed is 1. A mold jacketcomprising end walls and side walls the end walls being provided at twodiagonally opposite corners of the jacket with outwardly projectingflanges; handles located in the angles defined by the flanges and theside walls and constituting braces for the flanges; securing elementsuniting the flanges with the extremities of the side walls; a hingeuniting one side wall with one end wall at one of the remaining cornersof the jacket; and a latch uniting the other end wall with the otherside wall at the fourth'corner of the jacket.

2. A mold jacket comprising an end wall; a side wall having a keeperincluding an upstanding arm; a latch fulcrumed on the end wall andincluding a depending bill engaged behind the arm and coacting with thekeeper' to draw the side wall toward the end wall when the latch islowered, the latch including a 'linger disposed at an angle to the bill,and coacting with the inner face of the arm to move the side wall awayfrom the end wall when the latch is raised.

3. A mold jacket comprising an end wall; a side wall having a keeperincluding an upstanding arm; a latch fulcrumed on the end wall andincluding a depending bill engaged behind the arm and coacting with thekeeper to draw the side wall toward the end wall when the latch islowered, the latch including a finger disposed at an angle to the billand coacting with the inner edge of the arm to move the side wall awayfrom the end wall when the latch is raised; and a stop on the end walland cooperating with the latch to prevent a disengagement ofthe latchfrom the keeper when the latch is raised.

ln testimony that we claim the foregoing as our own, we have heretoaffixed our signatures in the presence of two witnesses.

JAMES C. GEORGE. GABRIEL L. GEORGE.

l/Vitnesses:

J. K. BURNS, H. DoRro'r.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington,D C.

